* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-size: 14px;
  font-family: Menlo, Bitstream Vera Sans Mono, DejaVu Sans Mono, Monaco,
    Consolas, monospace !important;
  color: #333;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  height: 40px;
  font-size: 12px;
  line-height: 40px;
  background-color: rgb(247, 250, 252);
  border-radius: 4px;
  outline: 0;
  padding: 0 15px;
  transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
  border: 1px solid #dcdfe6;
}

input::placeholder {
  color: #c0c4cc;
}

input[type="text"]:focus,
input[type="password"]:focus {
  background-color: #fff;
  border-color: #409eff;
}

input[type="text"]:hover,
input[type="password"]:hover {
  filter: brightness(1.01);
}

.button {
  display: block;
  width: 260px;
  height: 45px;
  line-height: 45px;
  font-size: 12px;
  text-align: center;
  border-radius: 4px;
  border: 1px solid #dcdfe6;
  cursor: pointer;

}

header {
  height: 60px;
  background-color: white;
}

header .nav {
  display: flex;
  justify-content: flex-end;
  margin: 0 30px;
}

header .nav li {
  width: 70px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  cursor: pointer;
}

header .avatar {
  width: 60px;
  height: 60px;
  background: url("../assets/avatar.png");
  background-size: 40px 40px;   
  background-repeat: no-repeat;
  background-position: center;
}

/* header .nav li:hover {
  border-bottom: 2px solid #409EFF;
} */

header .nav li:nth-child(1) {
  color: #409EFF;
  border-bottom: 2px solid #409EFF;
}

footer {
  width: 100%;
  font-size: 12px;
  display: flex;
  margin: 30px 0 20px 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
